Fossil-bearing concretions found in the Francis Creek Shale of the Carbondale Formation near Mazon Creek, Illinois, have attracted international attention. The abundant and diverse biota of this Pennsylvanian delta complex has been studied for almost 150 years, resulting in many taxonomic descriptions. Numerous Mazon Creek fossils in private collections have been designated as type, figured, or referred specimens. The locations of privately owned specimens are less permanent than those of... Topics: Fossils -- Illinois Catalogs and collections, Type specimens (Natural history) -- Catalogs and...
byChang, Mee-mann; Field Museum of Natural History; Grande, Lance. joint author Geology Dept., Field Museum of Natural History
A reexamination and redescription of the Early Cretaceous clupeomorph Paraclupea chetungensis from southeastern China based on newly prepared specimens reveals a number of characters it shares with Ellimmichthys longicostatus (Cope, 1886) from eastern Brazil and Ellimmichthys goodi (Eastman, 1912) from West Africa (Equatorial Guinea) but not with Diplomystus (from western North America, eastern China, and the Middle East). These characters are summarized in a differential diagnosis of... Topics: Paleontology -- Cretaceous, Ellimmichthys, Fossil -- China, Clupeidae, Fossil -- China